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Ancient Tree Inventory
To build a living database of ancient trees
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsBiologytrees, united kingdom
trees
within 25 miles
Feb 21, 2026
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2B Technologies, Inc.
AQTreks (AirQualityTreks)
Monitor air pollution levels and map air pollution around the US
Multiple locations, including yours!
- Ongoing
Citizen ScienceNature & OutdoorsGeographyEducationCrowd FundingTransportationEcology & EnvironmentComputers & TechnologyClimate & WeatherChemistryOcean Water Marineexperimentweathercarbon dioxideglobal warmingdataenvironmentdatabaseparticulate mattergirl scoutsair pollutionmobile applicationhikingsteminvestigationwinterequitycarbon monoxideweather dataclimate changesmartphone applicationsummernatureusascienceoutdoorsspringcommunity-based monitoringappenvironmental justiceec2020aircitizen scienceair qualityair pollution monitoringclimateclimate monitoringandroidiphonebicyclingautumnair quality index
NC State University | ecoipm.org | YourWildLife.org
A Tree's Life
To learn how climate & urbanization affect tree growth & health
Multiple locations, including yours!
- Ongoing
Citizen ScienceBiologyEducationClimate & WeatherNature & OutdoorsEcology & Environmentclimate changeurban ecologytreescarbon sequestration
Cornell University/New York Department of Environmental Conservation
AVID (Assessing Vegetation Impacts from Deer)
Monitor the effects of deer browsing on woodland trees and plants
Multiple locations, including yours!
- Ongoing through November 30, 2030 at 8:35 PM
Citizen ScienceAnimalsEcology & EnvironmentNature & Outdoorsseedlingswildlifeforestecologyforest healthtreesdeerwildflowerswoodlands
Airigami
Balloon Breakdown
Help compost 40,000 latex balloons
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentballoonsballooncompostingcompost
Northern Rivers Fire and Biodiversity Consortium Inc.
Bell Miner Associated Dieback Best Practice Project
Evaluate the removal of mid-storey density in disturbed forests using prescribed fire, weed control and bush regeneration as a method to restore BMAD affected forest.
Anywhere
- Ongoing
Citizen ScienceEducationEcology & EnvironmentBirdsbird monitoringtree health across the northern rivers region of new south walesgondwana world heritagelandholdersbell miner associated dieback (bmad) birds biodiversitydataaustralialocations of native bell miner coloniesbmad affected forest trees
Zooniverse
Buzzy Bee - African Canopy Pollinators
Study pollination of Central African timber species
Anywhere
- Ongoing
Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologyfloral traitstimber speciescirculating entomofaunatree speciespollen dispersal distancespollination flower ecology tree conservation interaction botany insect entomologytropical rainforestsize and composition of pollinators communities
Casey Trees
To restore, enhance and protect the trees of Washington DC
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologytree plantingcanopytreeswashington d.c.planting
Caterpillars Count!
Monitor the seasonality and abundance of foliage arthropods
Multiple locations, including yours!
- Ongoing
Citizen ScienceInsects & PollinatorsEducationEcology & EnvironmentBiologyNature & OutdoorsAnimalsGeographycaterpillarscsm-featuredcsm2025arthropodsearth2025phenologybird foodbiodiversityinsectscsm2026
Chestnut Mega-Transect
Document status of American chestnuts along Appalachian Trail.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentPolicyClimate & WeatherNature & Outdoorsappalachiancountcountingtreestree